黄金科学技术 ›› 2020, Vol. 28 ›› Issue (5): 688-700.doi: 10.11872/j.issn.1005-2518.2020.05.067
胡金山1(),胡福林1,刘金刚1,李宁1,胡国柳1,王国光2
Jinshan HU1(),Fulin HU1,Jingang LIU1,Ning LI1,Guoliu HU1,Guoguang WANG2
摘要:
江西德兴银山铜多金属矿深部勘探项目取得重要勘查成果,新探明储量(331+332+333)铜54万t,铅+锌23万t,金57 t,银914 t,硫593万t。为进一步扩大银山深部找矿远景,评价矿区更深部位的找矿潜力和预测赋矿有利空间,根据本次深部勘探各类探矿工程的详细地质观察编录,结合岩矿试验工作,进一步系统总结勘探报告的成果,分析研究矿床基础地质条件和成矿特征,依此提炼获得新的认识。研究表明:(1)燕山期银山次火山岩体与成矿密切相关,3#英安斑岩与铜金成矿有关,5#石英斑岩与铅锌银矿化有关;(2)银山背斜北西翼控制了绝大多数矿体的产出和分布;(3)矿体的定位和形态受主断裂及其两侧伴生的网状裂隙组成的断裂构造带控制,细网脉浸染状矿石为主要矿化类型;(4)与铜矿化、铅锌矿化相伴生的热液蚀变分别是以硅化绢云母化和绿泥石化碳酸盐化为主的低温蚀变组合。银山铜多金属矿深部矿体尚未封闭,在银山九区—西山区深部是后续找矿的最佳方向。
中图分类号:
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